Pith Number

pith:IUSD7HMK

pith:2018:IUSD7HMKWWMWA47ZO37WFA4I6B

not attested not anchored not stored refs pending

On graph algebras from interval maps

Carlos Correia Ramos, Nuno Martins, Paulo R. Pinto

arxiv:1807.07503 v1 · 2018-07-19 · math.OA · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUSD7HMKWWMWA47ZO37WFA4I6B}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:10:19.998384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45243f9d8ab5996073f976ff628388f076c3f3fa0cf078d03d21be4717ea3499

Aliases

arxiv: 1807.07503 · arxiv_version: 1807.07503v1 · doi: 10.48550/arxiv.1807.07503 · pith_short_12: IUSD7HMKWWMW · pith_short_16: IUSD7HMKWWMWA47Z · pith_short_8: IUSD7HMK

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IUSD7HMKWWMWA47ZO37WFA4I6B \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 45243f9d8ab5996073f976ff628388f076c3f3fa0cf078d03d21be4717ea3499

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "409fa7db0c7de669643672fa5c2d9f0c5d57a09822fd854a07a2a44126e4cefd",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-07-19T15:45:09Z",
    "title_canon_sha256": "b087669af40d999ee5e8b2e706966ddd8348c893b0e58cfaf1027ded45b684c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07503",
    "kind": "arxiv",
    "version": 1
  }
}